Flare stack burner having spherical valve



FIG. 1 is a front elevational view.

FIG. 2 is a top plan view thereof; and,

FIG. 3 is a perspective of the flare stack burner having spherical valveof FIG. 1.

The broken lines in the drawing represent portions of the flare stackburner having spherical valve and environmental subject matter that formno part of the claim.

CLAIM The ornamental design for a flare stack burner having sphericalvalve, as shown and described.